SRINAGAR, Indian-administered Kashmir (CNN) -- Separate attacks on Indian security forces in Kashmir have killed three people and wounded at least 24 others, police said.

Suspected militants ambushed a Border Security Force (BSF) patrol in the village of Machan in the Jammu region's Rajouri district overnight Sunday and into Monday morning with automatic gunfire and grenades.

The attack killed two BSF personnel and wounded 8 others.

Earlier Sunday evening, police said a suspected militant threw a grenade at a security forces bunker in Srinagar. The grenade rolled off the bunker before exploding, killing one person and wounding 16 others.

The attacks came 10 days ahead of the April 7 reopening of bus service between the two sides of the disputed region of Kashmir -- controlled by India and Pakistan.

India and Pakistan each claim all of Kashmir, which has been divided by U.N.-drawn border since 1972.